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Daiosaki Lighthouse

Fl WR 15s🇯🇵Honshu-South Coast, JPOperational

Location & Light Range

About Daiosaki Lighthouse

Daiosaki Lighthouse is situated along the Honshu-South Coast. Its focal height measures 46 meters above sea level. The light emits a single white or red flash every 30 seconds, alternating colors. This visual signal provides a recurring reference point for mariners navigating the area.

Light & Optic

Characteristic Signature
Fl WR 15s
Flash Type
Flashing
Light Color
WR
Flash Count
1 flash
Interval
15s
Raw Code
Fl.W.R. period 30s
Focal Height
46m
Light Range
18NM (33.3 km)

References & Identifiers

Admiralty No.
M6036
NGA No.
6384

Location

City
Honshu-South Coast
Country
🇯🇵JP
Latitude
34.2761°
Longitude
136.8995°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How far offshore can Daiosaki Lighthouse be seen?+
With a focal height of 46 meters and a nominal range of 18 nautical miles (approximately 33.3 km), Daiosaki is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. Lights of this range are typically used as landfall lights by vessels approaching from the open sea.
How do mariners identify Daiosaki Lighthouse at night?+
Daiosaki displays the characteristic Fl WR 15s — 1 wr flash every 15 seconds. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area. The wr color may indicate a specific sector or warning zone.
Which ports and harbors does Daiosaki Lighthouse guide vessels into?+
Daiosaki Lighthouse assists vessels approaching 5 nearby ports. The closest is Matoya at 5.3 NM to the N. Other ports served include Hamajima (7.3 NM W), Gokasho (10.9 NM WNW), Toba (12.6 NM NNW), Suga (13.4 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Daiosaki Lighthouse still active and maintained?+
Yes, Daiosaki Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
What shipping routes pass near Daiosaki Lighthouse?+
Daiosaki Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Daiosaki Lighthouse?+
You can track vessels near Daiosaki Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.